Sketching apparatus



June 16, 1953 T, w. GARRISS SKETCHING APPARATUS Filed Nov. 50, 1951INVENTOR r. ll

Dun/v4 Mary/arms WEWflmm A M/Ma ATTORNEYS Patented June 16, 1953 UNITEDSTATES PATENT OFFICE 2,641,840 SKETCHING APPARATUS Thurman W. Garriss,Burgaw, N. C.

Application November 30, 1951, Serial No. 259,200

This invention relates to sketching apparatus for use by artists, andmore particularly to readily portable apparatus arranged to enable anartist to accurately sketch the outlines of an object or scene.

It is among the objects of the invention to provide sketching apparatuswhich is easily portable and can be conveniently 'set up at any desiredlocation; which includes means providing an image of an object or sceneto be sketched and means for manually transferring the outlines of theimage to a suitable base or carrier, such as a sheet of drawing paper;which produces a sketch of a size having a predetermined ratio to thesize of the image; which automatically produces a sketch when a sightingpoint is manually moved along the outlines of an image; and which issimple and durable in construction, economical to manufacture, easy touse, and neat and attractive in appearance. I

Other objects and advantages Will become apparent from a considerationof the following description and the appended claims in conjunction withthe accompanying drawing, wherein:

Figure 1 is a perspective View of sketching apparatus illustrative ofthe invention;

Figure 2 is a perspective view similar to Figure 1,. but showing'theside of the apparatus opposite that illustrated in Figure 1;

Figure 3 is a fragmentary cross-sectional view on an enlarged scale onthe line 3-3 of Figure 1; and

Figure 4 is an elevational view on an enlarged scale of a fragmentaryportion of the apparatus.

With continued reference to the drawing, the apparatus comprises adrawing board IU of rectangular shape which is shown mounted on aneasel, generally indicated at H, and including a T-shaped base l2, astandard l3 extending upwardly from the base at the intersection of thebase members, a brace Hi extending between the base and the standard andadjustably connected to the standard for supporting the latter inupright position at various selected inclinations, a trough l5 mountedon the standard substantially perpendicular to the latter and receivingthe bottom edge of the board l0, and braces l6 extending from thestandard l3 to the respectively opposite ends of the trough IE to holdthe trough in perpendicular position relative to the standard. Thetrough l5 and braces l6 may be moved longitudinally of the standard toselected positions of adjustment by means well known to the art.

As the easel may be of well known con- 2 Claims. (01. 33-20) struction,a more complete illustration and description thereof is consideredunnecessary for the purposes of the present disclosure, and it is alsoto be understood that the drawing board In may be mounted on othersupporting means than an easel, if desired.

The drawing board H1 is provided with an opening 20, preferablyofcircular shape, and an image screen 2|, also preferably of circularshape and comprising a body of translucent sheet ma terial, such asfrosted glass, is mounted in a suitable frame or bezel 22, disposed inthe opening 20 and having an outwardly projecting annular flange 23 atone end overlying the rear side of the drawing board It! surrounding theopening 20 in the board. This frame is secured to the board by suitablemeans, such as the screws 24 extending through apertures in the flange23 and threaded into the board.

A telescope, generally indicated at 25, is disposed adjacent the frontside of the board and has a tubev 26 one end of which is secured to theframe 22 in surrounding relationship to the image screen 2|, the tube 26being provided at the adjacent surface of the board with acircumferentially extending slot 21 of approximately semicircularextent. At its end remote from the board In the tube 26 carries atelescope eyepiece 28 including a lens or lenses, as indicated at 29,for viewing an image on the image screen 2|. The eyepiece may, ifdesired, be provided with suitable focusing means well known to the art.

Conventional means, such as the image-forming means used in portraitcamera of Patent Number 1,528,464 to Beidler, et al. or such as theimage-forming means shown in German patent Serial Number 19,324, may beused to produce the image on the frosted glass image screen 2|. Sincethis image producing means forms no part of the present invention, ithas not been illustrated.

The board In provides a sketch-supporting surface 30 adjacent theopening 20, which sketchsupporting surface is adapted to carry a sketchbase or carrier, such as the sheet 3| of sketching paper mounted on theboard by suitable means, such as thumbtacks.

The board also carries a pantograph, generally indicated at 35,including a first major arm 36 pivotally connected at one end to theboard adjacent the corner of the board remote from the opening 20, asecond major arm 31 pivotally connected at one end to the free or distalend of the arm 36 and extending from the arm 36 toward the image screen2| in the opening 2|] 3 in the board, a first minor arm 38 pivotallyconnected at one end to the major arm 36 intermediate the length of thelatter and extending from the arm 35 substantially parallel to the arm3! and a second minor arm 39 pivotally connected at one end to the arm31 intermediate the length of the latter and extending from the arm 31to the end of the arm 38 remote from the-arm 36 and pivotally connectedthereto. A scribing element, such as the pencil M3,.is carried by thearms 38 and 39 at the pivotally connected ends thereof, and thisscribing element is movable over the sketching paper 3| mounted on' 44and &5 are mounted the ring 43 and intersect at the center of the ring,and a small dot 46 is carried by the cross hairs 44 and 45 at their.

point of intersection and constitutes a tracing point which is movableover the image screen 2|.

A small knob 48 is preferably mounted on the arm 3! adjacent the end ofthe arm from which the wire extension 42 projects for manually movingthe ring 43 and the tracing point 45 carried thereby over the viewingscreen.

With this arrangement, as the tracing point 46 is moved along theoutlines of an image on the image screen 2!, as viewed through thetelescope 25, the scribing element 49 will be moved in a similar mannerover the paper sheet 3! and will produce a sketch on the sheetcorresponding to the outlines of the image. The pantograph 35 may bearranged to produce any desired magnification of the sketch relative tothe image on the image screen 2|.

The invention may be embodied in other specific forms without departingfrom the spirit or essential characteristics thereof. The presentembodiment is, therefore, to be considered in all respects asillustrative and not restrictive, the scope of the invention beingindicated by the appended claims rather than by the foregoingdescription, and all changes which come within the meaning and range ofequivalency of the claims are, therefore, intended to be embracedtherein.

What is claimed is:

l. Sketching apparatus comprising a drawing board having an openingtherein, means supporting said drawing board in upright position, aframe secured to said drawing board and disposed within said opening, aviewing screen mounted in said frame, a telescope secured at one end tosaid frame and carrying at its other end a lens spaced from said screen,said telescope having an opening therein adjacent said screen, a sketchreceiving member mounted on said board at a location spaced from saidframe, and a pantograph pivotally mounted on said board at a locationspaced from said frame and said sketch receiving member and having afree end of an arm thereof extending through the opening in saidtelescope and carrying a tracing member adjacent said viewing screen andhaving a portion thereof overlying said sketch receiving member andcarrying a scribing element.

2. Sketching apparatus comp-rising a drawing board having an openingtherein, means supporting said drawing board in upright position, aframe secured to said drawing board and disposed Within said opening, aviewing screen mounted in said frame, a telescope secured at one end tosaid frame and carrying at its other end a lens spaced from said screen,said telescope having an opening therein adjacent said screen, a sketchreceiving member mounted on said board at a location spaced from saidframe, and a pantograph pivotally mounted on said board at a locationspaced from said frame and said sketch receiving member and having afree end of an arm thereof extending through the opening in saidtelescope and carrying a tracing member adjacent said viewing screen andhaving a portion thereof overlying said sketch receiving member andcarrying a scribing element, said tracing element comprising a circularring of a size materially less than the size of said screen and crosshairs extending diametrically across said ring perpendicular to eachother.

THURMAN w. GARRI'SS.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 216,460 Rosquist June 10, 1879 951,472 Cofiey Mar. 8, 19101,588,316 Davis June 8, 1926 1,770,238 Hughes July 8, 1930 FOREIGNPATENTS Number Country Date 19,324 Germany Jan. 15,1882

